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Copper () is uniquely the only metal in the 3d transition series that has a positive standard reductd and f Block Elements Chemistry Question

Question

Copper ($Cu$) is uniquely the only metal in the 3d transition series that has a positive standard reduction potential ($E^\circ = +0.34\text{ V}$). Consequently, which characteristic behavior does it exhibit?

Answer: B

💡 Solution & Explanation

A positive $E^\circ$ value means the metal is resistant to oxidation and is a poor reducing agent. Because its high sublimation and ionization energies are not compensated by hydration energy, Copper cannot reduce $H^+$ to $H_2$ gas.

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